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Finding the Fourth Proportional to 702,433.15, 969,357.68 and 380,143.33

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Solution

The fourth proportional to 702,433.15, 969,357.68 and 380,143.33 is: 524,597.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,433.15 : 969,357.68 = 380,143.33 : x
  2. Step 2: Convert to fraction form
    702,433.15/969,357.68 = 380,143.33/x
  3. Step 3: Cross multiply
    702,433.15x = 969,357.68 × 380,143.33
  4. Step 4: Simplify right side
    702,433.15x = 368,494,853,537.70
  5. Step 5: Solve for x
    x = 368,494,853,537.70/702,433.15
  6. Step 6: Final answer
    x = 524,597.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.